CN114601628A - Intraocular object delivery device and method - Google Patents

Abstract

The invention relates to the technical field of intraocular surgery, in particular to an intraocular delivery device and a method, which comprises an insertion tube and an adjusting mechanism, wherein one end of the insertion tube is provided with an upper hemisphere, one end of the upper hemisphere is provided with a lower hemisphere, the inner wall of one end of the insertion tube is uniformly provided with positioning grooves, positioning plates are slidably connected inside the positioning grooves, a fixing piece is fixedly connected to the middle upper end inside the insertion tube, a moving tube is arranged inside the insertion tube, and one end of a first rotating piece is fixedly connected with a first bevel gear. This device can wrap up the back with the crystal, is smashing the back and is holding its suction, and whole process need not the user and holds between the fingers the crystal and press from both sides out, and then can avoid the crystal to fall into intraocular tissues such as eye ground damage retina, also can avoid rubbing incision department repeatedly, and then the degree of difficulty that reduces the operation time, reduces incision and eye ground tissue damage and the risk of postoperative infection.

Description

An intraocular delivery device and method

technical field

The invention relates to the technical field of intraocular surgery, in particular to an intraocular delivery device and method.

Background technique

The vitreous is a semi-solid colloidal substance in the eye that fills the vitreous cavity. Under normal circumstances, the vitreous has good light transmittance. If the vitreous is diseased, the light person will feel that there are mosquitoes flying in front of the eyes when looking at things, and the severe case may completely block the light and cause blindness, and may also cause surrounding tissue lesions, such as retinal detachment. The basic function of vitrectomy is to remove the opacified vitreous body or vitreoretinal traction, restore the transparent refractive interstitium and promote retinal reattachment, and treat vitreoretinal diseases to restore the visual function of patients. When trauma or surgery causes crystals or foreign bodies to enter the vitreous cavity, vitreous surgery is required to remove the crystals or foreign bodies. The crystals that fall into the vitreous cavity are often converted into fragments by ultrasonic crushing, phacoemulsification or vitreous cutting head bite and then sucked out. However, the splashing of ultrasonic energy or small fragments of the crystal during the operation can easily damage the fragile surrounding tissues in the eye, especially the innermost retina of the vitreous cavity wall, resulting in visual impairment;

At present, some vitreous surgeries usually use intraocular forceps to remove foreign bodies that have entered the eye. During the removal process, the grasp is often not firm, and it falls back into the fundus to damage the retina and other intraocular tissues, or the incision is removed from the incision. Friction and repeated falling of foreign bodies increase the difficulty of the operation, prolong the operation time, increase the risk of incision and fundus tissue damage and postoperative infection.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an intraocular delivery device and method, so as to solve the partial vitreous surgery proposed in the above-mentioned background art for the removal of foreign bodies entering the eye, usually using intraocular forceps for removal, which often occurs during the removal process. If grasping is not firm, it falls back into the fundus and damages the retina and other intraocular tissues, or rubs against the incision at the incision, and the foreign body falls repeatedly, which increases the difficulty of the operation, prolongs the operation time, increases the damage to the incision and the fundus tissue, and increases the risk of postoperative infection. The risk problem, through this solution, the lens can be wrapped, then crushed, and then sucked out after crushing. The whole process does not require the user to pinch the lens and clip it out through the incision, thereby preventing the lens from falling into the fundus and damaging the retina and other eyes. It can also avoid repeated friction of the incision, thereby reducing the difficulty of the operation, reducing the operation time, reducing the risk of incision and fundus tissue damage and postoperative infection.

In order to achieve the above purpose, the present invention provides the following technical solutions: an intraocular delivery device and method, comprising an insertion tube and an adjustment mechanism, one end of the insertion tube is provided with an upper hemisphere, and one end of the upper hemisphere is provided with a lower hemisphere The inner wall of one end of the insertion tube is evenly provided with a positioning groove, the interior of the positioning groove is slidably connected with a positioning plate, and one end of the positioning plate is fixedly connected to one side of the upper hemisphere, and the middle and upper ends of the insertion tube are A fixing piece is fixedly connected, a moving tube is arranged inside the insertion tube, and the middle part of the moving tube is slidably connected with the fixing piece, one end of the moving tube is fixedly connected with the upper hemisphere, and a suction tube is arranged inside the moving tube, And one end of the suction tube is connected with the upper hemisphere, the inside of the insertion tube is provided with an outer tube, and one end of the outer tube is fixedly connected with the upper hemisphere, the middle part of the outer tube is slidably connected with the fixing piece, and the inner part of the outer tube is slidably connected. An inner tube is slidably connected, and one end of the inner tube is fixedly connected to the lower hemisphere, one end of the insertion tube is provided with a first clamp body, and one end of the first clamp body is fixedly connected to one end of the outer tube, and the insertion tube has a One end of the second clamp body is provided with a second clamp body, and one end of the second clamp body is fixedly connected with the inner tube, and one end of the second clamp body is provided with a chute, the inner part of the chute is slidably connected with a sliding piece, and the sliding piece is The bottom end is fixedly connected with the inner tube, the middle part of the first clamp body is rotatably connected with a second rotating piece, and both ends of the second rotating piece are fixedly connected with the middle part of the second clamp body, and the inner part of the outer tube is provided with There is a first shrinking rope, and the first shrinking rope penetrates the outer tube and is located inside the upper hemisphere, one end of the first shrinking rope penetrates the largest diameter of the upper hemisphere, the inner tube is provided with a second shrinking rope, and A second retraction cord penetrates the inner tube and is located inside the lower hemisphere, and one end of the second retraction cord penetrates the largest diameter of the lower hemisphere.

Preferably, the sides of the upper hemisphere and the lower hemisphere that are close to each other are in the shape of serrations, and the serrations are meshed for shearing.

Preferably, the sizes of the positioning grooves are all adapted to the size of the positioning plate, the inner diameter of the outer tube is adapted to the outer diameter of the inner tube, and the adapted size facilitates the movement of the positioning plate and the inner tube.

Preferably, the moving mechanism includes a side plate, a through slot, a connecting plate, a thread, a first threaded rod, a transmission bin, a first turning slot, a second turning slot, a first turning rod, a first turning piece, a first cone The middle and upper part of the insertion tube is fixedly connected with a side plate, the middle and upper part of the insertion tube is provided with a through-slot, and the through-slot passes through one side of the fixing piece, the through-slot A connecting plate is slidably connected to the inside of the side plate, and one end of the connecting plate is fixedly connected with the moving pipe, the inner wall of one end of the side plate is connected with a threaded sleeve through a bearing, and the inside of the threaded sleeve is connected with a first threaded rod through a thread, and the first threaded rod is threaded. One end of a threaded rod is fixedly connected with the connecting plate, one end of the side plate is provided with a transmission compartment, one end of the side plate is provided with a second turning slot, and one end of the second turning slot is connected with the transmission compartment, the said The inner wall of one end of the side plate is provided with a first turning slot, and one end of the first turning slot is connected with the transmission bin, the interior of the first turning slot is rotatably connected with a first rotating rod, and one end of the first rotating rod is threadedly sleeved Fixed connection, the other end of the first rotating rod is fixedly connected with a second bevel gear, the inside of the second rotating groove is rotatably connected with a first rotating piece, and one end of the first rotating piece is fixedly connected with a first rotating piece. Bevel gears for easy user movement.

Preferably, the adjustment mechanism includes a first spring, a ratchet, a moving bin, a threaded hole, a connecting groove, a second threaded rod, a turning hand, a first moving plate, a second moving plate, a second spring and a ratchet, the first A first spring is fixedly connected to the middle part of the two clamp bodies, and one end of the first spring is fixedly connected to the middle part of the first clamp body, a ratchet is fixedly connected to the outer surface of the second rotating member, and the middle part of the first clamp body is fixedly connected A moving bin is provided, the inner wall of one end of the moving bin is provided with a threaded hole, the inner wall of the other end of the moving bin is provided with a connecting groove, and the connecting groove is connected with the interior of the first clamp body, and the interior of the threaded hole passes through A second threaded rod is threadedly connected, one end of the second threaded rod is fixedly connected with a turning handle, the other end of the second threaded rod is connected with a first moving plate through a bearing, and the first moving plate is slidably connected with the moving bin, One end of the moving compartment is slidably connected with a second moving plate, one side of the second moving plate is evenly and fixedly connected with a second spring, and one end of the second spring is fixedly connected with the first moving plate, and the connecting groove A ratchet tooth is slidably connected to the inside of the ratchet tooth, and one end of the ratchet tooth is fixedly connected with the second moving plate. It is convenient for users to crush work.

Preferably, the size of the first moving board is the same as the size of the second moving board, the size of the moving bin is adapted to the size of the first moving board, and the adapted size is convenient for the second moving board and the first moving board. Movement of the mobile board.

Preferably, the size of the connecting groove is adapted to the size of the ratchet, and the adapted size facilitates the movement of the ratchet.

Preferably, both the first bevel gear and the second bevel gear are located inside the transmission chamber, and the first bevel gear is meshed with the second bevel gear to facilitate transmission.

The present invention includes an intraocular delivery device and method: the device operation method:

Step 1: The user pulls the first and second shrinking ropes, so that the ball openings of the upper and lower hemispheres can be contracted, thereby reducing the volume of the upper and lower hemispheres, and then attach the insertion tube to the upper and lower hemispheres. After one end of the hemisphere is inserted into the vitreous cavity, the user loosens the first and second shrinking ropes, and returns to their original state under the memory of the upper and lower hemispheres. The first bevel gear, the second bevel gear, the first rotating rod and the threaded sleeve are driven to rotate, the rotating threaded sleeve can make the first threaded rod extend, and one end of the first threaded rod drives the connecting plate and the moving pipe to move, The moving tube drives the lower hemisphere, the upper hemisphere, the suction tube, the inner tube and the first clamp body to move. At this time, after the user's lower hemisphere moves to the desired position, the first rotating piece is stopped at this time;

Step 2: The user turns the hand, through the threaded hole, the second threaded rod, the first moving plate, the second spring and the second moving plate, the ratchet teeth can no longer be engaged with the ratchet wheel, and the user passes his finger through the first pliers One end of the body and the second clamp body, and make one end away from each other, at this time, one end of the first clamp body and the second clamp body located on the side of the insertion tube are close to each other, and the inner tube moves inside the outer tube at this time. And the inner tube can separate the upper hemisphere and the lower hemisphere. After the user adjusts the upper hemisphere and the lower hemisphere to the two sides of the crystal, the user reverses his hand and passes through the threaded hole, the second threaded rod, the first moving plate, the second The spring and the second moving plate can make the ratchet teeth engage with the ratchet wheel, and the angle of the first clamp body and the second clamp body can be fixed in one direction through the first spring, the ratchet teeth and the ratchet wheel, so as to prevent the user from loosening the first clamp body and the ratchet body. After the second clamp body, the upper and lower hemispheres are separated, and the user has wrapped the crystal through the upper and lower hemispheres;

Step 3: Finally, the user can pulverize the crystals inside the upper hemisphere and the lower hemisphere. After the pulverization, the user can suck out the pulverized crystals through a straw. After sucking out, the user can repeat the above steps to wrap, pulverize and suck out again. , when the user needs to take out the device, the user pulls the first contraction rope and the second contraction rope again, so that the ball openings of the upper hemisphere and the lower hemisphere can be contracted, thereby reducing the volume of the upper hemisphere and the lower hemisphere, which is convenient for the user Remove the unit.

Compared with the prior art, the beneficial effects of the present invention are:

When the user is performing surgery, the user pulls the first and second shrinking ropes, so that the ball openings of the upper hemisphere and the lower hemisphere can be contracted, thereby reducing the volume of the upper hemisphere and the lower hemisphere, which is convenient for the user to put the device into In the eye, the user inserts one end of the device into the vitreous cavity, loosens the first and second shrinking ropes, which can be restored under their own action, and then rotates the first rotating piece, through the first bevel gear and the second The bevel gear can make the first rotating rod and the threaded sleeve rotate, the first threaded rod and the connecting plate can be moved through the rotating threaded sleeve, and the moving pipe can slide inside the insertion pipe through the connecting plate, and simultaneously drive the upper hemisphere and the connecting plate. The movement of the lower hemisphere is convenient for the user to move the upper hemisphere and the lower hemisphere. After the user moves the upper hemisphere and the lower hemisphere to the desired position, the user can make the inner tube move inside the outer tube through the first clamp body and the second clamp body. Move, the upper hemisphere and the lower hemisphere can be wrapped around the crystals to be crushed through the inner tube, while the second forceps body can make the second rotating piece rotate, and the first forceps body and the second forceps body can be adjusted by the ratchet and the ratchet. The opening angle can be adjusted, and the ratchet teeth and the first spring can be used for locking, which is convenient for the user to fix the first clamp body and the second clamp body without the need for the user to hold the first clamp body and the second clamp body. , so that the user can do other work. After the user wraps the crystal through the upper hemisphere and the lower hemisphere, the user can crush the crystal, so as to avoid the crushed instruments or the small fragments of the crushed crystal from splashing and damaging the surrounding tissue in the eye. , and further improve the safety of users in crushing. After crushing, the user can suck out the crushed crystals on the inner walls of the upper and lower hemispheres through a straw, so that the user can wrap and crush the crystals again. , After crushing, sucking it out after crushing, the whole process does not require the user to pinch the lens out, which can prevent the lens from falling into the fundus and damage the retina and other ocular tissues, and also avoid repeated friction at the incision, thereby reducing surgery. It can reduce the difficulty of operation, reduce the operation time, reduce the risk of incision and fundus tissue damage and postoperative infection.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the present invention;

Fig. 2 is the cross-sectional perspective schematic diagram of the present invention;

Fig. 3 is the enlarged perspective schematic diagram of the A place in Fig. 2 of the present invention;

Fig. 4 is the enlarged perspective schematic diagram of B in Fig. 2 of the present invention;

Fig. 5 is the enlarged three-dimensional schematic diagram of C in Fig. 2 of the present invention;

Fig. 6 is the internal perspective schematic diagram of the insertion tube in the present invention;

FIG. 7 is a schematic cross-sectional perspective view of the first clamp body, the second clamp body and the second threaded rod in the present invention;

Fig. 8 is the exploded perspective schematic diagram of inserting pipe, inner pipe and threaded sleeve in the present invention;

FIG. 9 is an exploded perspective view of the first forceps body, the second forceps body and the ratchet teeth in the present invention.

In the figure: 1. Insertion tube; 2. Upper hemisphere; 3. Lower hemisphere; 4. Positioning groove; 5. Positioning plate; 6. Fixing part; 7. Moving tube; 8. Straw; 9. Outer tube; 10. Inner Pipe; 11, side plate; 12, through groove; 13, connecting plate; 14, threaded sleeve; 15, first threaded rod; 16, transmission bin; 17, first turning slot; 18, second turning slot; 19, 20, the first rotating piece; 21, the first bevel gear; 22, the second bevel gear; 23, the first clamp body; 24, the second clamp body; 25, the chute; 26, the slide parts; 27, the second rotating part; 28, the first spring; 29, the ratchet; 30, the moving bin; 31, the threaded hole; 32, the connecting groove; 33, the second threaded rod; plate; 36, the second moving plate; 37, the second spring; 38, the ratchet; 39, the first retraction cord; 40, the second retraction cord.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figures 1-9, an embodiment provided by the present invention:

An intraocular delivery device and method, comprising an insertion tube 1 and an adjustment mechanism, one end of the insertion tube 1 is provided with an upper hemisphere 2, one end of the upper hemisphere 2 is provided with a lower hemisphere 3, and both the upper hemisphere 2 and the lower hemisphere 3 have Memory function, so that the upper hemisphere 2 and the lower hemisphere 3 can be restored after being compressed. The inner wall of one end of the insertion tube 1 is evenly provided with a positioning groove 4. The interior of the positioning groove 4 is slidably connected with a positioning plate 5, and the One end is fixedly connected with one side of the upper hemisphere 2, the middle and upper end inside the insertion tube 1 is fixedly connected with a fixing member 6, the interior of the insertion tube 1 is provided with a moving tube 7, and the middle part of the moving tube 7 is slidably connected with the fixing member 6, One end of the moving tube 7 is fixedly connected with the upper hemisphere 2, a suction tube 8 is arranged inside the moving tube 7, and one end of the suction tube 8 is connected with the upper hemisphere 2, an outer tube 9 is arranged inside the insertion tube 1, and the outer tube 9 One end is fixedly connected to the upper hemisphere 2, the middle of the outer tube 9 is slidably connected to the fixing member 6, the inner part of the outer tube 9 is slidably connected to the inner tube 10, and one end of the inner tube 10 is fixedly connected to the lower hemisphere 3, and one end of the insertion tube 1 A first clamp body 23 is provided, and one end of the first clamp body 23 is fixedly connected to one end of the outer tube 9 , and one end of the insertion tube 1 is provided with a second clamp body 24 , and one end of the second clamp body 24 is connected to the inner tube 10 . Fixed connection, one end of the second clamp body 24 is provided with a chute 25, the interior of the chute 25 is slidably connected with a sliding piece 26, and the bottom end of the sliding piece 26 is fixedly connected with the inner tube 10, and the middle of the first clamp body 23 rotates A second rotating member 27 is connected, and both ends of the second rotating member 27 are fixedly connected to the middle of the second clamp body 24 . A first shrinking cord 39 is provided inside the outer tube 9 , and the first shrinking cord 39 Passing through the outer tube 9 and located inside the upper hemisphere 2 , one end of the first shrinking cord 39 runs through the largest diameter of the upper hemisphere 2 , the inner tube 10 is provided with a second shrinking cord 40 , and the second shrinking cord 40 Passing through the inner tube 10 and located inside the lower hemisphere 3, one end of the second shrinking cord 40 penetrates the largest diameter of the lower hemisphere 3;

In this embodiment, the moving mechanism includes a side plate 11 , a through slot 12 , a connecting plate 13 , a threaded sleeve 14 , a first threaded rod 15 , a transmission bin 16 , a first turning slot 17 , a second turning slot 18 , and a first turning slot 18 . The rotating rod 19 , the first rotating piece 20 , the first bevel gear 21 and the second bevel gear 22 , the middle and upper part of the insertion tube 1 is fixedly connected with the side plate 11 , the middle and upper part of the insertion tube 1 is provided with a through slot 12 , and A connecting plate 13 is slidably connected to the inside of the through groove 12 through the fixing member 6, and one end of the connecting plate 13 is fixedly connected with the moving tube 7, and the inner wall of one end of the side plate 11 is connected with a threaded sleeve through a bearing. 14. A first threaded rod 15 is threadedly connected to the inside of the threaded sleeve 14, and one end of the first threaded rod 15 is fixedly connected to the connecting plate 13. One end of the side plate 11 is provided with a transmission compartment 16, and one end of the side plate 11 is provided with a The second turning slot 18, and one end of the second turning slot 18 is connected with the transmission bin 16, the inner wall of one end of the side plate 11 is provided with a first turning slot 17, and one end of the first turning slot 17 is connected with the transmission bin 16, A first rotating rod 19 is rotatably connected to the inside of the first rotating slot 17 , and one end of the first rotating rod 19 is fixedly connected with a threaded sleeve 14 , and the other end of the first rotating rod 19 is fixedly connected with a second bevel gear 22 . A first rotating member 20 is rotatably connected to the inside of the rotating groove 18, and one end of the first rotating member 20 is fixedly connected with a first bevel gear 21. The user rotates the first rotating member 20, and the first rotating member 20 drives the first bevel gear. 21 rotates, the first bevel gear 21 drives the second bevel gear 22 to rotate, the second bevel gear 22 drives the first rotating rod 19 to rotate, the first rotating rod 19 drives the threaded sleeve 14 to rotate inside the side plate 11, The rotating threaded sleeve 14 can make the first threaded rod 15 elongate, and one end of the first threaded rod 15 drives the connecting plate 13 to move inside the through slot 12 , and the moving through slot 12 drives the moving tube 7 inside the insertion tube 1 . To move, the moving tube 7 drives the lower hemisphere 3, the upper hemisphere 2, the suction tube 8, the inner tube 10 and the first clamp body 23 to move. At this time, after the user's lower hemisphere 3 moves to the desired position, the first rotation is stopped. The component 20 is convenient for the user to move the upper hemisphere 2 and the lower hemisphere 3 to the desired position. The adjustment mechanism includes a first spring 28, a ratchet 29, a moving bin 30, a threaded hole 31, a connecting groove 32, a second threaded rod 33, and a turning handle 34. , the first moving plate 35 , the second moving plate 36 , the second spring 37 and the ratchet 38 , the middle of the second clamp body 24 is fixedly connected with the first spring 28 , and one end of the first spring 28 is connected to the first clamp body 23 The middle part of the first clamp body 23 is fixedly connected, the outer surface of the second rotating member 27 is fixedly connected with a ratchet wheel 29, the middle part of the first clamp body 23 is provided with a movable bin 30, and the inner wall of one end of the movable bin 30 is provided with a threaded hole 31. The inner wall is provided with a connecting groove 32, and the connecting groove 32 is connected with the inside of the first clamp body 23, the inside of the threaded hole 31 is threadedly connected with a second threaded rod 33, and one end of the second threaded rod 33 is fixedly connected with a turning handle 34, The other end of the second threaded rod 33 is connected with the first moving plate 35 through a bearing , and the first moving plate 35 is slidably connected with the moving compartment 30, one end of the moving compartment 30 is slidably connected with the second moving plate 36, one side of the second moving plate 36 is evenly and fixedly connected with the second spring 37, and the second spring 37 One end is fixedly connected with the first moving plate 35, the inside of the connecting groove 32 is slidably connected with a ratchet 38, and one end of the ratchet 38 is fixedly connected with the second moving plate 36, and one end of the ratchet 38 is engaged with the ratchet 29, It is convenient for the user to control the angle between the first clamp body 23 and the second clamp body 24, and at the same time, it is convenient for the user to crush work,

The first bevel gear 21 and the second bevel gear 22 are both located inside the transmission chamber 16 , the first bevel gear 21 and the second bevel gear 22 are meshed with each other to facilitate transmission. The size is adapted, the adapted size is convenient for the movement of the ratchet 38, the size of the through slot 12 is adapted to the size of the connecting plate 13, the adapted size is convenient for the movement of the connecting plate 13, the size of the positioning slot 4 is all It is adapted to the size of the positioning plate 5, the inner diameter of the outer tube 9 is adapted to the outer diameter of the inner tube 10, and the adapted size is convenient for the movement of the positioning plate 5 and the inner tube 10, and the upper hemisphere 2 and the lower hemisphere 3 are mutually compatible. The near side is serrated, and the serrations are meshed, which can be cut;

How to operate the device:

Step 1: The user pulls the first retraction cord 39 and the second retraction cord 40, so that the ball openings of the upper hemisphere 2 and the lower hemisphere 3 can be retracted, thereby reducing the volume of the upper hemisphere 2 and the lower hemisphere 3, and then inserting the tube 1. After the end with the upper hemisphere 2 and the lower hemisphere 3 is inserted into the vitreous cavity, the user loosens the first retraction cord 39 and the second retraction cord 40, and the upper hemisphere 2 and the lower hemisphere 3 return to their original state under the action of their own memory. When the user rotates the first rotating member 20, the first rotating member 20 drives the first bevel gear 21, the second bevel gear 22, the first rotating rod 19 and the threaded sleeve 14 to rotate. A threaded rod 15 is extended, one end of the first threaded rod 15 drives the connecting plate 13 and the moving pipe 7 to move, and the moving pipe 7 drives the lower hemisphere 3, the upper hemisphere 2, the suction pipe 8, the inner pipe 10 and the first clamp body 23 to move , at this time, after the user's lower hemisphere 3 moves to the desired position, the rotation of the first rotating member 20 is stopped at this time;

Step 2: The user turns the turning hand 34, through the threaded hole 31, the second threaded rod 33, the first moving plate 35, the second spring 37 and the second moving plate 36, the ratchet teeth 38 can no longer be engaged with the ratchet wheel 29, at this time The user passes his fingers through one end of the first forceps body 23 and the second forceps body 24, and keeps one end away from each other. At this time, the ends of the first forceps body 23 and the second forceps body 24 on the side of the insertion tube 1 are close to each other. When the inner tube 10 moves inside the outer tube 9, the upper hemisphere 2 and the lower hemisphere 3 can be separated by the outer tube 9 and the inner tube 10. After the user adjusts the upper hemisphere 2 and the lower hemisphere 3 to the two sides of the crystal, at this time The user reverses the hand 34, through the threaded hole 31, the second threaded rod 33, the first moving plate 35, the second spring 37 and the second moving plate 36, the ratchet tooth 38 can be engaged with the ratchet wheel 29, through the first spring 28, The ratchet teeth 38 and the ratchet wheels 29 can be unidirectionally fixed at the angle of the first forceps body 23 and the second forceps body 24 to avoid the separation of the upper hemisphere 2 and the lower hemisphere 3 after the user releases the first forceps body 23 and the second forceps body 24. At this point, the user has wrapped the crystal through the upper hemisphere 2 and the lower hemisphere 3;

Step 3: Finally, the user can pulverize the crystals inside the upper hemisphere 2 and the lower hemisphere 3. After the pulverization is completed, the user can suck out the pulverized crystals through the straw 8. After sucking out, the user can repeat the above steps to repackage, Crush and suck out, when the user needs to take out the device, the user pulls the first shrinking rope 39 and the second shrinking rope 40 again, so that the ball openings of the upper hemisphere 2 and the lower hemisphere 3 can be contracted, thereby reducing the size of the upper hemisphere 2 And the volume of the lower hemisphere 3, it is convenient for the user to take out the device.

Working principle: the user first pulls the first shrinking rope 39 and the second shrinking rope 40, under the action of the first shrinking rope 39 and the second shrinking rope 40, the ball openings of the upper hemisphere 2 and the lower hemisphere 3 can be contracted, and then The volume of the upper hemisphere 2 and the lower hemisphere 3 is reduced, which is convenient for the user to put the device into the eye, and then the user inserts the end of the insertion tube 1 with the upper hemisphere 2 and the lower hemisphere 3 into the vitreous cavity, and the user shrinks the first The rope 39 and the second retractable rope 40 are loosened and restored to their original state under the memory of the upper hemisphere 2 and the lower hemisphere 3. The user rotates the first rotating member 20, and the first rotating member 20 drives the first bevel gear 21 to rotate. The first bevel gear 21 drives the second bevel gear 22 to rotate, the second bevel gear 22 drives the first rotating rod 19 to rotate, and the first rotating rod 19 drives the threaded sleeve 14 to rotate inside the side plate 11 . 14 can make the first threaded rod 15 extend, one end of the first threaded rod 15 drives the connecting plate 13 to move inside the through slot 12, and the moving through slot 12 drives the moving tube 7 to move inside the insertion tube 1, moving The tube 7 drives the lower hemisphere 3, the upper hemisphere 2, the suction tube 8, the inner tube 10 and the first clamp body 23 to move. At this time, after the user's lower hemisphere 3 moves to the desired position, the rotation of the first rotating member 20 is stopped. Put a finger on one end of the first clamp body 23 and the second clamp body 24, the user turns the hand 34, the hand 34 drives the second threaded rod 33 to rotate, and the second threaded rod 33 can be made to rotate toward the threaded hole under the action of the threaded hole 31. 31, the second threaded rod 33 drives the first moving plate 35 to move, the first moving plate 35 drives the second spring 37 to move the second moving plate 36, and the second moving plate 36 drives the ratchet 38 to move. When the ratchet teeth 38 are no longer engaged with the ratchet wheel 29, at this time, under the action of the resilience of the first spring 28, it is convenient for the user to open one end of the first forceps body 23 and the second forceps body 24, which is close to the end of the insertion tube 1. The first clamp body 23 and the second clamp body 24 are close to each other, while the sliding member 26 slides inside the chute 25, and the slide member 26 and the inner tube 10 are pressed down by one end of the second clamp body 24, at this time The inner tube 10 moves inside the outer tube 9, and the lower hemisphere 3 can be driven to move through the inner tube 10. At this time, the upper hemisphere 2 and the lower hemisphere 3 are opened. At this time, the user rotates the turning hand 34 in the opposite direction, and the reverse turning hand 34 passes through the first hemisphere. The second threaded rod 33 can make the first moving plate 35, the second spring 37, the second moving plate 36 and the ratchet 38 move, and at the same time make the ratchet 38 and the ratchet 29 engage, the user continues to turn the hand 34 through the second threaded rod 33 and the first moving plate 35 can compress the second spring 37, the user moves the upper hemisphere 2 and the lower hemisphere 3 to both sides of the crystal, and then the user moves one end of the first clamp body 23 and the second clamp body 24 closer , the close end of the first clamp body 23 and the second clamp body 24 can compress the first spring 28. At this time, the second clamp body 24 drives the second rotating member 27 and the ratchet wheel 29 to rotate, and the rotating ratchet wheel 29 can cooperate with the ratchet wheel 29. The teeth 38 are in conflict with each other, and under the action of the ratchet wheel 29, the ratchet teeth 3 can be 8 moves toward the interior of the connecting groove 32, and the second spring 37 can be compressed again by the second moving plate 36. When one side of the ratchet wheel 29 moves past the ratchet teeth 38, at this time, the second spring 37 has its own resilience. Under the action, one end of the ratchet tooth 38 can be inserted into one side of the ratchet wheel 29, so as to prevent the second forceps body 24 from being reset under the action of the elastic force of the first spring 28, and it is convenient for the user to adjust the first forceps body 23 and the second forceps body. The angle of 24 is unidirectionally fixed to avoid the separation of the upper hemisphere 2 and the lower hemisphere 3 after the user loosens the first forceps body 23 and the second forceps body 24, thereby facilitating the use of the user. When the first forceps body 23 and the second forceps body 24 are separated When one end of the 24 is close to each other, the slider 26 at one end of the insertion tube 1 slides again inside the chute 25, the first clamp body 23 and the second clamp body 24 at one end of the insertion tube 1 are far away from each other, and the inner tube 10 is again Moving inside the outer tube 9, the inner tube 10 drives the lower hemisphere 3 to approach the upper hemisphere 2, and the crystal can be wrapped by the upper hemisphere 2 and the lower hemisphere 3. After the wrapping is completed, the user can pulverize the crystal. During the process, the crushed instruments or the fine fragments of the crushed crystals can be prevented from splashing and damaging the surrounding tissues in the eye, thereby improving the safety of the user in crushing. 8. The crushed crystals on the inner walls of the upper hemisphere 2 and the lower hemisphere 3 can be sucked out, and then the user repeats the above steps to wrap and crush the crystals again. When the user needs to take out the device, the user pulls the first contraction rope 39 and the second Two shrinking ropes 40, so that the ball openings of the upper hemisphere 2 and the lower hemisphere 3 can be contracted again, thereby reducing the volume of the upper hemisphere 2 and the lower hemisphere 3, which is convenient for the user to take out the device. It is crushed and sucked out after crushing. The whole process does not require the user to pinch and clamp the lens out, thereby preventing the lens from falling into the fundus and damaging intraocular tissues such as the retina, and avoiding repeated friction of the incision, thereby reducing the operation time. Difficulty, reduce operation time, reduce incision and fundus tissue damage and the risk of postoperative infection.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (9)

1. The intraocular object delivery device is characterized by comprising an insertion tube (1), a moving mechanism and an adjusting mechanism, wherein one end of the insertion tube (1) is provided with an upper hemisphere (2), one end of the upper hemisphere (2) is provided with a lower hemisphere (3), the inner wall of one end of the insertion tube (1) is uniformly provided with a positioning groove (4), the inside of the positioning groove (4) is connected with a positioning plate (5) in a sliding manner, one end of the positioning plate (5) is fixedly connected with one side of the upper hemisphere (2), the middle upper end inside the insertion tube (1) is fixedly connected with a fixing piece (6), the inside of the insertion tube (1) is provided with a moving tube (7), the middle part of the moving tube (7) is connected with the fixing piece (6) in a sliding manner, one end of the moving tube (7) is fixedly connected with the upper hemisphere (2), the inside of the moving tube (7) is provided with a suction tube (8), one end of the suction pipe (8) is connected with the upper hemisphere (2), an outer pipe (9) is arranged inside the insertion pipe (1), one end of the outer pipe (9) is fixedly connected with the upper hemisphere (2), the middle of the outer pipe (9) is in sliding connection with the fixing piece (6), an inner pipe (10) is in sliding connection with the inner part of the outer pipe (9), one end of the inner pipe (10) is fixedly connected with the lower hemisphere (3), one end of the insertion pipe (1) is provided with a first clamp body (23), one end of the first clamp body (23) is fixedly connected with one end of the outer pipe (9), one end of the insertion pipe (1) is provided with a second clamp body (24), one end of the second clamp body (24) is fixedly connected with the inner pipe (10), one end of the second clamp body (24) is provided with a sliding groove (25), and a sliding piece (26) is in sliding connection with the sliding piece of the sliding groove (25), the bottom end of the sliding piece (26) is fixedly connected with the inner tube (10), the middle of the first caliper body (23) is rotatably connected with a second rotating piece (27), two ends of the second rotating piece (27) are fixedly connected with the middle of the second caliper body (24), a first contraction rope (39) is arranged inside the outer tube (9), the first contraction rope (39) penetrates through the outer tube (9) and is located inside the upper hemisphere (2), one end of the first contraction rope (39) penetrates through the largest diameter of the upper hemisphere (2), a second contraction rope (40) is arranged inside the inner tube (10), the second contraction rope (40) penetrates through the inner tube (10) and is located inside the lower hemisphere (3), and one end of the second contraction rope (40) penetrates through the largest diameter of the lower hemisphere (3).

2. An intraocular delivery device according to claim 11, wherein: one sides of the upper hemisphere (2) and the lower hemisphere (3) close to each other are both in a sawtooth shape, and the sawteeth are meshed with each other.

3. An intraocular delivery device according to claim 1, wherein: the size of constant head tank (4) all with the size looks adaptation of locating plate (5), the internal diameter of outer tube (9) and the external diameter looks adaptation of inner tube (10).

4. An intraocular delivery device according to claim 1, wherein: the moving mechanism comprises a side plate (11), a through groove (12), a connecting plate (13), a threaded sleeve (14), a first threaded rod (15), a transmission bin (16), a first rotating groove (17), a second rotating groove (18), a first rotating rod (19), a first rotating piece (20), a first bevel gear (21) and a second bevel gear (22), the middle upper part of the insertion tube (1) is fixedly connected with the side plate (11), the middle upper part of the insertion tube (1) is provided with the through groove (12), one side of the through groove (12) penetrating through the fixing piece (6) is connected with the connecting plate (13) in a sliding manner, one end of the connecting plate (13) is fixedly connected with the moving tube (7), the inner wall of one end of the side plate (11) is connected with the threaded sleeve (14) through a bearing, the first threaded rod (15) is connected with the inside of the threaded sleeve (14) through threads, one end of the first threaded rod (15) is fixedly connected with the connecting plate (13), one end of the side plate (11) is provided with a transmission bin (16), one end of the side plate (11) is provided with a second rotary groove (18), one end of the second rotary groove (18) is connected with the transmission bin (16), the inner wall of one end of the side plate (11) is provided with a first rotary groove (17), one end of the first rotary groove (17) is connected with the transmission bin (16), a first rotary rod (19) is rotatably connected inside the first rotary groove (17), one end of the first rotating rod (19) is fixedly connected with a threaded sleeve (14), the other end of the first rotating rod (19) is fixedly connected with a second bevel gear (22), a first rotating piece (20) is rotatably connected inside the second rotating groove (18), one end of the first rotating piece (20) is fixedly connected with a first bevel gear (21).

5. An intraocular delivery device according to claim 1, wherein: the adjusting mechanism comprises a first spring (28), a ratchet wheel (29), a moving bin (30), a threaded hole (31), a connecting groove (32), a second threaded rod (33), a rotating hand (34), a first moving plate (35), a second moving plate (36), a second spring (37) and a ratchet (38), the middle part of the second clamp body (24) is fixedly connected with the first spring (28), one end of the first spring (28) is fixedly connected with the middle part of the first clamp body (23), the outer surface of the second rotating piece (27) is fixedly connected with the ratchet wheel (29), the middle part of the first clamp body (23) is provided with the moving bin (30), the inner wall of one end of the moving bin (30) is provided with the threaded hole (31), the inner wall of the other end of the moving bin (30) is provided with the connecting groove (32), and the connecting groove (32) is connected with the inside of the first clamp body (23), the inside of screw hole (31) has second threaded rod (33) through threaded connection, the one end fixedly connected with of second threaded rod (33) changes hand (34), the other end of second threaded rod (33) is connected with first movable plate (35) through the bearing, and first movable plate (35) and removal storehouse (30) sliding connection, the one end sliding connection that removes storehouse (30) has second movable plate (36), the even fixedly connected with second spring (37) of one side of second movable plate (36), and the one end of second spring (37) all with first movable plate (35) fixed connection, the inside sliding connection of spread groove (32) has ratchet (38), and the one end and the second movable plate (36) fixed connection of ratchet (38), the one end and ratchet (29) of ratchet (38) mesh mutually.

6. An intraocular delivery device according to claim 1, wherein: the size of the first moving plate (35) is the same as that of the second moving plate (36), and the size of the moving cabin (30) is matched with that of the first moving plate (35).

7. An intraocular delivery device according to claim 5, wherein: the size of the connecting groove (32) is matched with that of the ratchet (38).

8. An intraocular delivery device according to claim 4, wherein: the first bevel gear (21) and the second bevel gear (22) are both positioned inside the transmission chamber (16), and the first bevel gear (21) is meshed with the second bevel gear (22).

9. A method of operation for an intraocular delivery device according to any of claims 1 to 8, wherein: the operation method of the device comprises the following steps:

the method comprises the following steps: the user pulls the first contraction rope (39) and the second contraction rope (40), so that the ball mouths of the upper hemisphere (2) and the lower hemisphere (3) can be contracted, the volume of the upper hemisphere (2) and the lower hemisphere (3) can be reduced, then after the end, provided with the upper hemisphere (2) and the lower hemisphere (3), of the insertion tube (1) is inserted into the cavity of the glass body, the user loosens the first contraction rope (39) and the second contraction rope (40), the upper hemisphere (2) and the lower hemisphere (3) restore the original shape under the self-memory effect, when the user rotates the first rotating piece (20), the first rotating piece (20) drives the first conical gear (21), the second conical gear (22), the first rotating rod (19) and the threaded sleeve (14) to rotate, the rotating threaded sleeve (14) can enable the first threaded rod (15) to extend, one end of the first threaded rod (15) drives the connecting plate (13) and the moving tube (7) to move, the movable pipe (7) drives the lower hemisphere (3), the upper hemisphere (2), the suction pipe (8), the inner pipe (10) and the first clamp body (23) to move, and at the moment, after the lower hemisphere (3) of a user moves to a required position, the first rotating part (20) stops rotating;

step two: a user rotates a rotating hand (34), the ratchet (38) can not be meshed with the ratchet wheel (29) any more through the threaded hole (31), the second threaded rod (33), the first moving plate (35), the second spring (37) and the second moving plate (36), the user enables fingers to pass through one ends of the first clamp body (23) and the second clamp body (24) and enables one ends to be far away from each other, one ends of the first clamp body (23) and the second clamp body (24) on one side of the insertion tube (1) are close to each other, the inner tube (10) moves inside the outer tube (9), the upper hemisphere (2) and the lower hemisphere (3) can be separated through the outer tube (9) and the inner tube (10), after the user adjusts the upper hemisphere (2) and the lower hemisphere (3) to two sides of a crystal, the user rotates the rotating hand (34) reversely at the moment, and the ratchet wheel rotates the rotating hand (34) through the threaded hole (31), the second threaded rod (33), the first moving plate (35) and the second moving plate (36), The second spring (37) and the second moving plate (36) can enable the ratchet (38) to be meshed with the ratchet wheel (29), and the angles of the first clamp body (23) and the second clamp body (24) can be fixed in a one-way mode through the first spring (28), the ratchet (38) and the ratchet wheel (29), so that the upper hemisphere (2) and the lower hemisphere (3) are prevented from being separated after a user releases the first clamp body (23) and the second clamp body (24), and the user wraps the crystal through the upper hemisphere (2) and the lower hemisphere (3);

step three: at last, the user can crush the crystals inside the upper hemisphere (2) and the lower hemisphere (3), after the crushing is finished, the user can suck the crushed crystals out through the suction pipe (8), after the suction is finished, the user can wrap, crush and suck the crystals again by repeating the steps, when the user needs to take the device out, the user pulls the first contraction rope (39) and the second contraction rope (40) again, so that the ball mouths of the upper hemisphere (2) and the lower hemisphere (3) can be contracted, the volumes of the upper hemisphere (2) and the lower hemisphere (3) are reduced, and the user can take the device out conveniently.

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